![]() Malicious web actors often poison a DNS provider's database to route users to IP addresses of malicious sites, but Google takes a lot of steps to prevent such attacks, e.g., using the DNSSEC cryptographic standards. Google’s DNS is also very secure, thanks to the company’s extensive web security expertise. If the URL doesn't exist, it will simply tell you rather than redirect you to a page filled with adverts or a close match. Another advantage is that Google's DNS never redirects you to adverts if the URL you typed doesn't exist, unlike some competitors. It uses large caches and load balancing to ensure it can respond to the majority of queries as fast as possible. Google has more capacity than most DNS providers to support a high volume of queries. The fault doesn’t come from the website’s host but from your ISP’s domain name resolution provider, and the appeal of using Google Public DNS is to minimize such errors. In fact, you have likely experienced this problem before a website that you frequently visit is suddenly unable to load on a specific device. ![]() You may get directed to a wrong or outdated IP address, which consequentially shows that the website is unable to resolve. But, consider that default DNS providers for ISPs are prone to making mistakes. What we explained above may seem trivial. ![]() Once it gets that IP address, it immediately directs you to the intended website. These addresses constantly change, but Google keeps up with the frequent changes and always updates the entries in its database.įor example, you want to head to If you have Google’s Public DNS enabled, once you type into your web browser and click “go”, the query immediately passes through Google’s database where it seeks the corresponding IP address to. ![]() Here’s a simple explanation/analogy Google has a vast database of domain names and their corresponding IP addresses. Likewise, you can configure your personal device to route all web queries through the Google Public DNS to ensure you get the correct response. If you do that, your clients will use Google Public DNS directly, and any web query they send will go directly to it. ![]() As an ISP, you can configure your network infrastructure to return Google's Public DNS addresses. ![]()
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